Metallic roofing-plates



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` Letters Pateatdio. 104,647,1Zate1l June 21, 1870.

`traritrova1v/litres IN aurontNal's` ron ROLLING- `lvm'rALLrc:Roanne-PLATES.

The Schedulefrefer'red to in these LettersPatent-nl making part of thesame.'

Be it known that GEORGE A. REYNOLDS, of the i city of Rochester, countyof Monroe, and State of N ew i York, have invented acertainnew anduseful Improve` ment in Machines forRolling Metallic Roofin g-Plates,

. of which the following is a specification.

Y Nature of the Iurentfion.

Y This invention consists of series of rollers for rollingthe 4platesthroughdiatwisa having, at the ends, and forming fixtures thereof, `acorresponding series of graduated rollin g-dies, forproducin g theseamin'g .ben ds ofthe plates, as hereinafter described. v GeneralDescription. i In the drawingf Figure l'is a plan of the machine. j

Figures 2, 3, 4, and 5, elevations of the successive rollersand dies,with corresponding views of theform of the rolled plate `at `successivestepsof the rolling A is `the frame of the machine, having snitableberlsI3 B, for the entrance and exit of the plate, and havlng, also, sidegauges 'G C, `which are set c vactlyto V`the widthof the plate, and`serve to keepitin position.

` "as it is passed through the rollers. y At a suitable distance apartontheframe is mountcd a series of rollers, 1 2 3, &c.`, of any desirednumber in the series, each set beingmade upl of two rollers, D E,situated one above the other, with justspaoe enough between for the`sheet-rnetal plate lto pass through. These rollers are driven by gearsa-.t al bb,

" arranged in any desired manner, so as to give a constant forwardmotion to` all the rollers.

At one endof the set of rollers 1 are arranged rolli ing-dies: k l,`which, simply consist of angularfaces of i slight incline,whichcorrespond and intermatch.

i l 'lhelplate` G, as it passes through, is formed with a slghtbend, d,of the edge, as'shown at iig.` 2.1,

',Lhe next set of rollers, 2 has similar dies, a2 l2, but

`of a greater angleor incline, and they produce a greatcr bend oftheedge` (lof theplate G, as shownfin iig. 43; and so ou, for any desirednumber of the sets of roller-dies, gradually bending the'edge of thcmetal `up`more and more, till the `last set is reached, when the dies 7dP aremade. vertical, thereby turning the edge Aclef the plate to arightangled position asit runs through, asshownin g; 4.

After passing these dies?, 4the `vertical edge d of the platestrikesintoA theangle of small roller-dies m n,

which overlieoneanother, and lthe cxtreme edge is bent inward betweenthevertical faces of the dies,

thereby producingthe horizontal flange f,`bent inward i from edfe :t asshown in 5.

. e i l ferent', the dies are of a somewhat diierent shape.

The dies g'h g Itl 'g2 h2 have thesameinc'liue for turning up thevertical edge fi of the metal plate G, but they have, in addition,narrow horizontal rims p q, which intermatch and form the horizontalpart s of 4 the bend. Furthermore, they have inclined faces t-u tl al t2fue, which are the reverse of g h, &c.,and which 'gradually produce thedownward vertical bend r of the plate, shown complete in figs. 4 and 5.

I am aware that it is not new to form theseamingedges of metallicroofing-plates in a shape somewhat similar to that above described; andI am also aware that a machine is already in use in which smallgradnated roller-dies are employed for the purpose; but,

in such case, thedies are not connected with rollers that pass the platethrough between them', but are of "small size, and situatedhorizontallyat the sides of the machine, and the plate itself is clamped in abcdwhich moves between the side dies, the edges of the metal onlyprojecting out Aso as to reach the dies.

' The great advantage of my arrangement over that is in the use of themain rollers D Ewith the dies forming a part and fixture of the same, inwhich ease the sheet is held steady in place, and is run through onlyjust so fast as the dies can act upon it without straining or injuringthe metal.

The dies and rollers themselves feed the plate along, and thc platecannot bc moved so fast as to crimp or strain, which is the ease wherethe movement of the bed to which' the plate is clamped is independent ofthe dies which act upon the edges of the` plate.

Another great advantage of my invention is, that I can run the platesthrough of any desired length,

even of the roof itself,y while in other devices heretoforeused'onlycertain and given lengths could be made,

`notvexeeeding thebed in which it was clamped.

I also claim au advantage in the -use of the rollers D E, which removeallthe dents, bends, 'and irregularities in the inct'liu passingthrough, making it correspond with the edges which arc bent by the dies,and delivering it- .in a smooth` and unbroken sheet, ready forapplication upon thc-roof. 'Y

V Asimplebed clamp cannot do this, as the pressure is insufficient overthe whole surface; besides which, the edges, in passing 'through thedies, become expanded or stretched toa greater degree than'the body ofthe metal, thereby producing bend and irregularity in the plates, andfrequently tear. i

I contemplate, in some instances, setting the inner set or sets of therollers higher than the outer ones, so

as to produce a convex or rounding outline, in which case, when theplates are run through, they will be delivered of convex form, suitablefor covering car- Claims.

What I claim, and desire to secure by Letters-Patent, is-

1. In n machine for rolling metallic roofing-plates, a. series or trainof rollers having the dies forming a. part and fixture of the rollersthemselves7 and gradnated as described, and the whole so arranged as toproduce the double eect of rolling the plate and forming the seemingbends at one operation, as' specied.

2. The arrangement of the series of rollers D E and dies k l k l2 kil,and finishing-dies m n at one end, and the dies g h gl h1 g2 h2 at theother, as described. In witness whereof, I have hereunto signed my namein the presence of two subscribing witnesses.

GEORGE A. REYNOLDS. Witnesses:

It. F. OsGooD, GEO. W. MIATT.

